New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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In practical terms, the Yb:KYW crystal has identified its market in high-electrical power laser purposes as a result of its capability to make superior energy ultrashort laser pulses while preserving a compact dimensions. The interplay of its attributes �?seamless ytterbium substitution, strong absorption features, ultrashort pulse technology and effectiveness in Power conversion �?positions the Yb:KYW crystal like a cornerstone inside the laser engineering, masking varied fields starting from scientific study to industrial apps.
The comparison with Eyeglasses is suitable For the reason that significant gain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We present a dual-crystal Yb:KGW laserthat iscapable to function as being a Q-switched oscillator with output electric power around 24 W and pulse duration of 20 ns,or as a regenerative amplifier with output electrical power nearly 21 W and pulse period below two hundred fs soon after compression of chirped pulses. Both of those lasers have superb beam high quality with beam parameter M2
FIG. 4. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of the laser with an oblong active aspect for an output energy of seven-hundred mW. The width of
By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW a result of the very similar measurements of those chemical features as much as 100% of Yb-doping could possibly be obtained. This exceptional characteristic permits ytterbium to go ahead and take put of yttrium with just about no disruption for the crystal’s lattice.
Adhesion Test Compliant with MIL-C-675C navy criteria, an adhesion exam concerned applying a tape that fulfills LT-ninety specs on to the lens film layer. The tape was affixed completely after which eliminated vertically. This treatment was performed three times, leading to no blistering or peeling.
Raman, luminescence and transmission spectra reveal optical attributes owing on the existence of thulium ions, and for that reason the website resources might be further studied from the scope of laser and luminescence programs.
Spatial framework with the beam plus the corresponding depth profiles I for the output with the laser.
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Nonetheless, after Nd3+:YAG grew to become commercially out there, the desire in CaWO4 dropped sharply. In afterwards years, particular other tungstate crystals started to appeal to plenty of consideration.
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Simultaneously, a shorter laser wavelength can be received; it is possible to work having a quantum defect effectively down below 1%. As a consequence, the warmth generation can be so smaller that this partly compensates the reduce thermal conductivity.